Grab bar



FIG. 1 is a perspective view of a grab bar showing my new design;

FIG. 2 is a reduced perspective view thereof, the broken line showing a portion of a tub for illustrative purposes only;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom plan view thereof, viewed in the direction of the arrow (4) of FIG. 6;

FIG. 5 is a right side elevational view thereof, viewed in the direction of the arrow (5) of FIG. 6;

FIG. 6 is an front elevational view thereof;

FIG. 7 is a top plan view thereof, viewed in the direction of the arrow (7) of FIG. 6; and,

FIG. 8 is a left side elevational view thereof, viewed in the direction of the arrow (8) of FIG. 6. 

The ornamental design for a grab bar, as shown and described. 